Caliber Number 6R35 Movement Type Automatic with manual winding Accuracy +25 to -15 seconds per day Duration Approx. 70 hours Exterior Case Material Stainless steel (hard coating) Crystal Sapphire crystal Crystal Coating Anti-reflective coating on inner surface LumiBrite Lumibrite on hands and indexes Clasp Three-fold clasp with push button release Other Details Water Resistance 10 bar Case Size Thickness: 11.1 ㎜ Diameter: 39.3 ㎜ Length: 47.2 ㎜ Other Specifications An additional calf strap is included LIMITED EDITION on the case back Screw case back See-through case back Other Features 24 jewels Date display Stop second hand function